[codex] Tighten savepoint skill docs

[dd3ok]

Summary

• Tighten skills/savepoint/SKILL.md to a compact contract while preserving save/load/text modes and recovery guardrails.
• Add repo validation checks that keep the skill concise and keep direct CLI shortcut detail out of the skill body.
• Slim English and Korean READMEs by removing old migration/key mapping tables and long maintainer validation blocks, replacing them with focused maintainer/reference links.
• Add the README boundary that Savepoint is a recoverable repo/Git checkpoint, not a lightweight conversation summary.

Why

The feedback is valid for this repository: Savepoint should not be reduced to a tiny handoff summary, but the skill should also avoid carrying README-level or maintainer-level detail. The actual repo reference names are references/contract.md, references/safety.md, and references/template.md, so the skill keeps those names instead of the longer names in the pasted draft.

Validation

• python3 scripts/check-frontmatter.py
• python3 scripts/check-marker-block.py
• python3 scripts/check-marker-semantics.py
• python3 scripts/validate-examples.py
• python3 scripts/check-output-contract.py
• python3 scripts/validate-repo.py
• python3 scripts/check-savepoint-renderer.py (Windows symlink privilege case skipped; remaining tests ok)
• python3 scripts/check-install-helper.py (Windows symlink privilege case skipped; remaining tests ok)
• python3 scripts/savepoint.py validate --allow-example-paths examples/SAVEPOINT.filled.example.md examples/file-bugfix/SAVEPOINT.md examples/file-architecture/SAVEPOINT.md examples/unsafe-savepoint/SAVEPOINT.md
• git diff --check
• git diff --cached --check
• python3 -m compileall -q skills/savepoint/scripts scripts

[gemini-code-assist]

Code Review

This pull request simplifies and streamlines the documentation in README.md, README.ko.md, and SKILL.md by removing detailed maintainer/migration commands, CLI shortcut details, and multi-line code blocks. It also updates scripts/validate-repo.py to enforce these new constraints, including a strict line count limit of 55–65 lines for SKILL.md. A review comment correctly points out that SKILL.md currently has 66 lines, which would fail this new validation check, and suggests removing an empty line to meet the requirement.

Important

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[gemini-code-assist]

The current line count of SKILL.md is 66 lines, which will fail the repository validation check in scripts/validate-repo.py (which strictly enforces a limit of 55-65 lines). Removing the unnecessary empty line right after the frontmatter delimiter reduces the total line count to exactly 65 lines, satisfying the validation contract.

Suggested change

	# Savepoint
	# Savepoint